A six-sided number cube is rolled twice.
What is the probability that the first roll is an even number and the second roll is a number greater than 4?
5/6
1/3
1/6
2/3

1/3

Step-by-step explanation:

There are only 2 numbers higher than 4. That makes the odds 2/6. Simplify that to 1/3.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,